Greenhouses provide a controlled environment for sensitive plants. Whether large or small, greenhouses need to provide a particular temperature range to the plants being raised. Although heat systems are typical, the greenhouse itself produces heat through strategic structure choices and location.

Employing the Sun

Approximately 25 percent of a greenhouse’s heat production comes from the sun, notes University of Tennessee Agricultural Extension Service. But this natural heat supply is just optimized when the greenhouse is properly oriented on the property. By placing the structure on the south or south area of the land, the greenhouse gets more light throughout the different seasons, such as winter. To benefit the greenhouse plants much more, orient the greenhouse from north to south to decrease shading and produce more heat.

Glass or Plastic Covering

Greenhouses using glass as the main covering retain heat much better than their single-layer plastic alternatives because glass allows the sunlight to penetrate the greenhouse interior whilst providing a barrier to trendy winds and drafts. As a less expensive alternative, properly layered plastic is really a feasible option. Two plastic layers having an air gap in between create an obstacle to cold weather with the benefit of a reduced setup price. As the sun rises and sheds its light on the glass or plastic-covered greenhouse, temperatures climb inside to produce the required heat for successful plant growth.


Even the sturdy greenhouse loses its heat during cracks and open ports. One way to produce heat will be to retain the warmth saved from a cloudless afternoon till the sun warms the greenhouse again. A north-facing greenhouse wall is infamous for allowing cold winds to maneuver throughout the structure, particularly because it’s the shadiest area. Completely insulating the north wall using plywood, or a different good material, helps the greenhouse stay warm. Keeping doors shut, repairing cracks and securing open ports additionally helps the greenhouse stay warm. Consequently, you do not need to heat the greenhouse using pricey heaters.

Using Compost

A natural greenhouse heat production alternative is using compost. As the compost decomposes, heat emanates from this pile to warm the immediate area. This is generally a supplemental heating strategy, rather than the main heat source, because excessive carbon dioxide gasses may accumulate in the enclosed area. Coupling compost with other heat production solutions, like the sunlight and suitable insulation, enables the greenhouse to have a more balanced fever year-round.

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